# import time
# import tkinter
# t = time.strftime("%Y-%m-%d %H:%M:%S",time.localtime(time.time()))
# tk1 = tkinter.Tk()
# label1 = tkinter.Label(tk1, text=t).pack()
# def tom():
#    # while len(self) > 0:
#      #   print(self)
#      #   time.sleep(1)
#     label1.config (test = time.strftime( "%Y-%m-%d %H:%M:%S" , time.localtime(time.time())))
#     tk1.update()
#     sleep(1)
#     tom()
#
#
# tk1.mainloop()
'''Money = 2000


def AddMoney():
    # 想改正代码就取消以下注释:
    global Money
    Money = Money + 1


print (Money)
AddMoney()
print (Money)
import pygame'''
#逆向输出乘法口诀表
# k=10
# for i in range(1,10):
#     s = k-i+1
#
#     for j in range(1,s):
#         print(str(s-1)+"*"+str(s-j)+"="+str((s-1)*(s-j)),end=" \t")
#
#     print()
a = [(x,y) for x in range(2,5) for y in range(2,5)]
print(a)
